Joint construction for pipes or the like



Patented Feb. 21, 1928.

PATENT OFFICE.

LNCOLN B. SHERWOOD, `OF LONG BEACH, CALIFORNIA.

J'OIN'I' CONSTRUCTION FOR PIPES ORTHE LIKE.

Application filed November 12, 1924. Serial No. ?49,438.

This invention has to do with a joint construction for pipe sectionsand is particularly applicable to concrete pipes, or the like, such as are used` for flues, 'vents, etc.

An objectof this invention is to provide a jointconstructon which is efiective in holding pipe sections together in the event that the concrete or plaster employed at the joint fals.

Another object of this invention is to provide a joint Construction which is effective in holding the pipe sections in place, upon their being arranged together and before the cement or plaster applied to the joints has set, thus makin the pipe particularly convenient and simple to set or instalL' A furthertobject of this invention is to provide a joint construction which is extreinelv simple and inexpensive of manufacture. i i i e i The various objects andfeatures of this invention will be best and more fully understood from'the following detailed description of a typical form and embodiment of the invention throughout which descripi tion reference is had to the accompanying drawings, in which i F ig. 1 is` a longitudinal detailed sectional View of two pipe sections embodying the present invention, showing the sections joned to ether. i i

Fg. 2 lS a perspective View of one of the 'joint fianges provided by this invention.

Fig. 3 is an end View of one end of a pipe section being a View taken as indicated by line 3-3 on Fig. 1 and Fg. 4 is a View similar to the View of Fig. 3 being a View taken as indicated by line 4-4 on Fg. 1.

The -construction provided by this invention is broadly applcable to pipe sections of monolithic Construction. It is particularly applicable to concrete pipe of the general character employed for flues,`vents, etc. I will, throughoutthis description of my invention, re'ter to it applied to pipe sections tormed of concrete and of the general type just referred to.

In the drawings,.numeral 10 designates, generally, pipe sections, each of which comprises an elongate tubular body ot' concrete. The pipe sections are rectangular in cross-sectional configuration. Openings 13 through the sections extend completely through the sections from end to end and are such to register When the sections are arranged together end to end. i

In accordance with the preferred form of the invention the joinng or abutting ends of adjacent sections are made to fit or mesh together, for instance, the end of one section is provided with a projection or tongue 15 adapted to extend into a socket or recess 16 provided in theadjoining end of the adjacent section. In practice it is convenient to provide each section with a projection 15 on one end and a socket 16 in the other end. The projections and sockets are, of course, shaped and proportioned so that they fit more or less closcly together and' thereby make tight joints between adjacent sections. In accordance with the broader aspects of my present invention the projections and sockets may be shaped or fashioned in various nanners, it being preferred, however, to form the projections 15 entirel around the ends of the sections so that their nner sides 19 are continuous with the inner walls 20 of the pipe sections, and so that their outer ends 21 are` flat and parallel With the ends of the sections and so that their outer side walls 22 are nclincd outwardly from the ends 521 to the shoulders of the sections. It is preferred to proportion the parte so that the fiat ends 21 of the projections and the` unoccupied parts of the shoulders 23 are of substantally the same width. Construction the projections are comparetively wide where they join the ends of the sections and are therefor strong and effective. The sockets 16 are shaped to correspond to the projects 15, each socket bein provided with an inclined side wall 25 an a flat end or bottom 26.

In accordance with this invention a flange ot' metal, or the like, is provided on the end ofone section to cooperate with the adjoining end of the next section to hold the sections in' proper alignment ndependently of the meshng ends of the sections. In the `form of the invention illustrated in the each flange is formed of sheet metal and is With this provided With a bent or turned part 30, Which extends into the body of the pipe section to secure or anchor the fiange thereto. In the case of the outside ;fianges 21 the turned parts 30 extend inwardly so that they are embedded in the body ot the pipo sections While in the case of the inside fianges 20 turned parts 30 extend outwardly au shown in Fig. 2.

in practice, each fiange is preferably formed of a single piece of sheet metal, as I haye illustrated in Fig. 2. The fianges are made' permanent With the pipe sections by casting or jointing the pipe sections on or to them.

'Furthen it is preferred that 'the inside flange 20 at each joint be carried by or uttached to the pipe section having the 'projection so ti the lengje extends in the same direction as the projection and projects beyond .the projection in the manner clearly illustrated in Fig. 1 of the drawinggs. When both inner and outer 'tlanges and '21 are employed it is preferred to provide one of the two flanges each joint on one of the pipe sections and the other on the other pipe section. It is to he undei' tood of course, that the inside fiangcs 20 are made to slidably iit into the openings oi? the pipi. sections While the outside flanges are made to slidabl-y fit over the ends oi' the pipo sections.

'Furthen in accordance With this invention a comparatvely small opening 50 is formed through the Wall of each section close to its end so that a nail 51, or the like, can be passed through a pipo section to secure it to a iframe member or support 52 in the manner illustrated in Fig. l ot the drawing. The openings 50 are, in accordance with this invention located in the sections so that they are covered by one of the fiange parts, for instance, the inner fiange parts 20, When the sections are arranged together.

In using the pipe embodying this invention, it is ordinarily desirable to arrange the sections together end to end so that the projections 15 are at the lower ends of the sections and extend downwardly into" the sockets 16. When the sections are arranged together in this manner the inside flanges 20 extend downwardly intothe openings of the adjoining sections While the outside fianges 21 extend upwardly around the lower ends of the adjoining sections. A-s the sections are arranged together -a suitable mortar or cement 50 may be a-pplied between the ends of the sections, which mortar serves as a bond to hold the sections together and to make the joints tight against the passage of "firmes, gases and lire, etc.

Having described only a typical preferred form of my invention, I do not- Wish to limit mysel i to the specific details hereinabove set forth, but wish to reserye to myself any changes or variations that may appear to those skillcd in the art or fall within the seo )e of the following claim:

aving described my nvention, I claim:

A joint Construction for sections of monolithic pi-pe including, a sheet metal flange having a part embedded in the end portion of onesection a part projecting from the end of that section to hold the adjacent end of the nent section, said adjaeent section having a nail `'hole :tormed through' its Wall at apoint to becovered ;by the fiange When the sections are together.

in Witness that I claim the foregoing I have hereunto subscribed my name .this. th day of October 1924.

LINCOLN B. SHEBEVOOD. 

